Altair GraphQL Client vs Speakeasy

Altair GraphQL Client is an open-source GraphQL IDE for sending queries, mutations, and subscriptions to GraphQL APIs. It provides features like query autocompletion, schema documentation browsing, environment variables, and request collections. The client is available as a desktop application, browser extension, and web app.

Speakeasy SDK generation platform that creates idiomatic client libraries from OpenAPI specs in multiple languages.